Steam hoist and dump for autotrucks.



C. B. BUCK.

STEAM HOIST AND DUMP FOR AUTOTRUCKS. APPLICATION FILED IuNE II, Isls.

M'. PaIenIed Feb.22,1916.

l NETE@ STATES PATENT, lFliflIE,

CHARLES B. BUCK, OF WASHINGTON, DISTRICT 0F COLUMBIA.

STEAM HoisT AND DUMP ron AU'roTRUcKs.

Specication of Letters Patent.

Patented ieee., aa, raie,

Application filed J une 11, 1915. Serial No. 33,533.

To all whom t may concern:

Be it known that I, CHARLES B. BUCK, a citizen of the United States, residing at lVashington, District of Columbia, have invented certain new and useful Improvements in Steam Hoists and Dumps for Autotrucks, of which the following is a.

specification, reference being had therein to the accompanying drawing.

This invention relates to new and useful improvements in steam hoists for dumping wagons and consists of a simple and eilicient device of this nature having variousthe drawings by numeral, 1 designates a.

truck mounted on suitablewheels and having a wagon box 2 pivotally mounted upon the standards 2. A steam cylinder 3 is provided with a base 4 'and is mounted upon the truck and has a pipe 3 leading into the bottom thereof whereby steam may be introduced into the lower portion of the cylinder. A piston 5 is mounted within the cylinder' and has a stem 6 fixed thereto which works through a suitably packed gland at the upper end of the cylinder. A cross bar 8 is apertured for the reception of said stein and jam nuts 14 and 15. are mounted upon the stem upon opposite sides of the cross bar to securely hold the parts together. A band 11 surrounds the cylinder and is provided with lugs 10 which are apertured for the reception of the lower threaded ends of the guide rods 7, saidA rods being held in place by means of the jam nuts 10. Said rods 7 pass through apertures in a crosspiece 9` fastened to the upper end of the cvlinder, and buffer springs 16 are mounted upon the rods 7 intermediate the crosspiece 9 and said bar S and serve as shock absorbers when the wagon returns to its normal position after having been elevated for the purpose of dumping the contents of the box. Other springs, designated by numeral 17, are fastened to the crosspiece 9 and are mounted about the bars 7 and are designed to come in contact with the lugs l0 when the piston is forced upward by introduction of steam in the lower portion thereof and serve to prevent a sud: den jar incident to the piston reaching its upper limit.

Bracket members 21 are fastened to the forward end of the box and have forwardly projecting arms 22 which are apertured for the reception of the bolts 19 which also pass through the arms 23 upon th'e bracket member 20 which is also fastened to the box, and nuts 25 are mounted upon the ends of the bolts 19. Links 18 are pivotally connected at corresponding ends upon the bolts 19 and their other ends are pivotally connected to the shank portions of the screws 15 which are mounted in the threaded holes in the lugs 10.

The operation of my invention will be readily understood and is as follows: When steam is introduced into the lower portion of the cylinder, the piston will be driven upward and, through the connections with the box, the latter will be tilted to the position shown in Fig. 1 of the drawings. Any shock incident to the piston reaching its upper limit will be avoided by the buffer springs 17, whereas, on the returrnmovement of the piston to its lowest position incident to the lowering of the box to its noi"- mal horizontal position, the crosspiece 8 coming in contact with the springs 16 will tend to prevent jar to the box.

What l claim to be new is 1. A steam hoist for elevating boxes of dumping wagons of automobiles, etc., consisting of a truck and a pivotal box thereon, a steam cylinder, a piston mounted therein and a stem secured to the piston and movable through the end of the cylinder, a. band movable about the piston, pivotal link connections between said band and box, and

Aconnections between the band and piston box pivotally mounted thereon, a steam cylinder, a piston therein and a piston rod secured! to the piston and movable through a;

suitably packed gland at. the upper end thereof, a band surrounding the cylinder and provided With projecting portions, links pivotally connecting the box and band, and' connections between the piston and band.

4; In combination with a truck having a box' pivotally mounted thereon, a steam cylinder, a iston therein and a piston rod secured thereto andl movable through a suitably packed gland at the upper end thereof,

a band surrounding the cylinder .andprovided with projecting portions, links pivot-v ally connecting the box and band, a cross" bar connected to the piston rod, and rods. connectinggsaid bar andban 5'. In cpmbination with a truck having abox pivotally mounted thereon, av steam-cylinder, a piston therein and a piston rod securedI thereto and movable through a suitably packed gland at the upper end thereof, a band surrounding the cylinder and pro.- vided with rejecting portions, links pivot'- ally connecting the box and band, a cross bar connected to the piston rod, rods connecting saidbar and band, and' a crosspiece upon the cyli'nd'er which isapertured for the reception of said rods.

6. In combination with atruckhaving a boxpivotally mounted thereon, a' steam cylinder, a piston therein and piston rod secured to the piston and movable through a suitably packed gland at the upper end thereof, aband surrounding the cylinder and provided with projecting portions, links pivotally connectingthe boX and band, af

,crossbar connected to the piston rod, rods ,connecting said bar andr band, acrosspie upon the cylinder which is apeitured for the reception ofsaidrods, buffer s ringsupon the rod interposed between said bar and crosspiece uponY the cylinder, and; buffer springs upon the rods intermediate said crosspiece and' band.

7. In combination with a truck having a box pivotally mounted thereon, a steam cyl inder, apiston therein and a piston rod secured' to the piston and movable through a suitably packed gland at the upper end thereof, a band about the cylinder and having oppositely Adisposed projectionsv which are apertured, rods passing through said apertures and fastenedl therein, an apertured cross bar secured to the piston and to which said rods are secured, an@ apertured crosspiece upon the cylinder through which the. rods are guided, .buii'er springs mounted upon the rodsl and' interposed between said bar and crosspi'ece' andl between the latter and said roj'ections upon the band, and pivotal link connections between said band andl box.

8.v In combination with a truck having a boxpivotally mounted thereon, a steam cylinder, apistont'herein and a piston rod securedte the piston and movable through al suitablfy packed gland at Jthe upper `endthereo ing. oppositell disposed projections which are aperture rods passlng through said apertures and fastened therein, an apertured' cross b'ar secured' to the piston and to which said' rods are secured, an apertured. crosspiee upon the cylinder through which the rods are guided, bui'er springs mounted uponthe rods and interposed between saidv bar and, cross'piece and between the latter and said projections upon the band, bracket members secured to the box, links pivoted to said bracket members', and' screws upon ther a band about the cylinder and hav-l projections of the band and to which said links arel pivoted.

In testimony whereof I hereunto aiix my signature in presence of two witnesses.

CHARLES B. BUCK. Witnesses:

A. L Hopen, A. R. FoWLnR. 

